1. AKi, K., and RIchards, P., Quantitative Seismology (Freeman, San Francisco 1980).
2. BOrtfeld, R. (1962), Reflection and Refraction of Spherical Compressional Waves at Arbitrary Plane Interfaces, Geophys. Prospecting 10, 517–538.
3. BRekhovskikh, L. M., Waves in Layered Media (Pergamon Press, New York 1960).
4. CAgniard, L., Reflection and Refraction of Progressive Seismic Waves (McGraw-Hill, New York 1962).
5. ČErvený, V., The reflection of spherical elastic waves at a plane boundary. In Geofyzikálni sborník, vol. 4 (ed. Zátopek A.) (NČSAV, Praha 1957) pp. 343–366.